Dear all, I have a requirement for which I need to use multiple bonding using Red Hat Linux ES-3 Release 6. System has 2 different subnets with 2 interface for each subnet connecting to two different switch. In order to achieve high availability (HA) we would like to have single IP for each subnet so trying to use Linux IP bonding and suceeded in creating bond0 but unfortunately when tried with second bonding device (ifup bond1) I'm getting error ""bonding device bond1 does not seem to be present, delaying initialization." Below is the configuration that I tried (Note for testing purpose I tried one interface for each bonding device ie: eth0 to bond0 (subnet1) and eth1 to bond1 (subnet2) ). Have I overlooked anything ? Appreciate if anyone can help me on this..... [EMAIL PROTECTED] etc]# cat /etc/sysconfig/network-scripts/ifcfg-bond0 > > DEVICE=bond0 > > BOOTPROTO=static > > ONBOOT=no > > NETMASK=255.255.255.0 > > IPADDR=10.0.0.245 > > [EMAIL PROTECTED] etc]# cat /etc/sysconfig/network-scripts/ifcfg-bond1 > > DEVICE=bond1 > > BOOTPROTO=static > > ONBOOT=no > > NETMASK=255.255.255.0 > > IPADDR=10.0.0.248 > > [EMAIL PROTECTED] etc]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 > > DEVICE=eth0 > > MASTER=bond0 > > SLAVE=yes > > BOOTPROTO=dhcp > > ONBOOT=no > > TYPE=Ethernet > > [EMAIL PROTECTED] etc]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 > > DEVICE=eth1 > > MASTER=bond1 > > SLAVE=yes > > BOOTPROTO=dhcp > > ONBOOT=no > > TYPE=Ethernet > > [EMAIL PROTECTED] etc]# cat modules.conf > > alias eth0 tg3 > > alias eth1 tg3 > > alias bond0 bonding > > alias bond1 bonding > > alias scsi_hostadapter cciss > > alias usb-controller usb-uhci > > alias usb-controller1 ehci-hcd
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